Panasonic TC75EX750C – Service mode, adjustments, Power LED blinking codes, hotel mode and more
TC75EX750C
– Panasonic LED LCD TV - Service mode, adjustments, Power LED blinking
codes, hotel mode. Universal remote control set-up codes for Panasonic
TVs and more - LA73
Chassis Canada
The information given
here is for experienced service technicians only and is not for use by the
user. Does not contain warning or cautions to advce non-technical persons of
potential dangers in attempting to service this product. Products powered by electricity should be
serviced or repaired by well experienced service personal only. Any attempt to service or repair the product
by anyone else could result in serious injury or even death.Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap, which should be removed for potential shock reasons prior to applying power to the unit under test.
Immediately
before removing the protective material from the leads of a replacement ES
device, touch the protective material to the chassis or circuit assembly into
which the device will be installed.
After
removing an electrical assembly equipped with ES devices, place the assembly on
a conductive surface such as aluminum foil, to prevent electrostatic charge
buildup or exposure of the assembly.
A-Board: Main
P-Board: Power supply
K-Board: REMOTE / LED
/ CATS
LDP-Board: LED Driver
Replacement of ICs
When Main IC (IC8000) is replaced, eMMC (IC8920) should be also replaced with new one the same time.
When eMMC (IC8920) is replaced, Main IC (IC8000) is not necessary to be replaced the same time.
After the replacement of IC, SELF CHECK should be done to generate the final KEY data.
When Main IC (IC8000) is replaced, eMMC (IC8920) should be also replaced with new one the same time.
When eMMC (IC8920) is replaced, Main IC (IC8000) is not necessary to be replaced the same time.
After the replacement of IC, SELF CHECK should be done to generate the final KEY data.
Keys
HDCP1.4 (SINK) for MTK HDMI and HDCP2.2 (SINK) for MTK HDMI are not displayed
in SELF CHECK.
Connect the 4K60Hz with HDCP2.2 compatible equipment to HDMI1/2 for verification of key [HDCP2.2 (SINK) for MTK HDMI].
Connect the 4K30Hz compatible equipment to HDMI1/2/3/4 for verification of key [HDCP1.4 (SINK) for MTK HDMI].
Connect the 4K60Hz with HDCP2.2 compatible equipment to HDMI1/2 for verification of key [HDCP2.2 (SINK) for MTK HDMI].
Connect the 4K30Hz compatible equipment to HDMI1/2/3/4 for verification of key [HDCP1.4 (SINK) for MTK HDMI].
How to SELF CHECK
While pressing [VOLUME ( - )] button on the main unit, press
[MENU] button on the remote control for more than 3 seconds.TV will be forced to the factory shipment setting after this SELF CHECK.
Digital
TV programmes can be recorded in USB HDD.
A One-to-One key generated in A-board by SELF CHECK binds TV and USB-HDD for communication.
That key is only one key for them. If the key is difference, TV cannot access USB-HDD
A One-to-One key generated in A-board by SELF CHECK binds TV and USB-HDD for communication.
That key is only one key for them. If the key is difference, TV cannot access USB-HDD
Caution
New key will be generated by following SELF CHECK and previous TV programmes recorded in USB HDD will not be viewed.
SELF CHECK: While pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds.
New key will be generated by following SELF CHECK and previous TV programmes recorded in USB HDD will not be viewed.
SELF CHECK: While pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds.
How to enter into CS Maintenance Menu
After
exchange parts, check and adjust the contents of adjustment mode.
While pressing [VOLUME ( - )] button of the main unit, press [ RED ] button of the remote control three times within 2 seconds.
Note:
CS Maintenance Menu can not be entered when 3D signal input.
Input 2D signal to enter CS Maintenance Menu.
While pressing [VOLUME ( - )] button of the main unit, press [ RED ] button of the remote control three times within 2 seconds.
Note:
CS Maintenance Menu can not be entered when 3D signal input.
Input 2D signal to enter CS Maintenance Menu.
Key command
Press the Cursor key [Up/Down] on the remote control to select the functions.
Press the Cursor key [Up/Down] on the remote control to select the functions.
How to exit:
Press the [EXIT] button on the remote control.
Press the [EXIT] button on the remote control.
Repack
1. Select [OPT] in CS Maintenance Menu.
2. Press [OK] button or Cursor key [Right] on the remote control.
1. Select [OPT] in CS Maintenance Menu.
2. Press [OK] button or Cursor key [Right] on the remote control.
Exit:
Press the [Exit] button or the [Return] button on the remote control.
Press the [Exit] button or the [Return] button on the remote control.
EDID Clock
1. Select [EDID CLK] in CS Maintenance Menu.
2. Press [OK] button or Cursor key [Right] on the remote control
1. Select [EDID CLK] in CS Maintenance Menu.
2. Press [OK] button or Cursor key [Right] on the remote control
Exit:
Press the [Exit] button or the [Return] button on the remote control.
Press the [Exit] button or the [Return] button on the remote control.
USB HDD Drive Check
1. Select [DRV CHECK] in CS Maintenance Menu.
2. Press [OK] button or Cursor key [Right] on the remote control.
1. Select [DRV CHECK] in CS Maintenance Menu.
2. Press [OK] button or Cursor key [Right] on the remote control.
Exit:
Press the [Return] button on the remote control.
Press the [Return] button on the remote control.
White Balance Adjustment
After LCD PANEL or A-Board is replaced and repaired, perform [White balance adjustment] in case of necessity for test / check
([White balance adjustment] is not required basically).
1. Select [W/B ADJ] in CS Maintenance Menu.
2. Press [OK] button on the remote control.
Note for performing [White balance adjustment]
Make a note for the setting values before changing if the settings of [R-GAIN], [B-GAIN] and [G-GAIN] in [WB-ADJ] will be changed.
3. Press the cursor key [Up/Down] on the remote control to change the data value, and press [OK] button on the remote control to store the value for this model.
* COLOR TEMP : Press the [Option] button of the remote control to change the color temperature. (COOL/NORMAL/WARM/ TUNING)
After LCD PANEL or A-Board is replaced and repaired, perform [White balance adjustment] in case of necessity for test / check
([White balance adjustment] is not required basically).
1. Select [W/B ADJ] in CS Maintenance Menu.
2. Press [OK] button on the remote control.
Note for performing [White balance adjustment]
Make a note for the setting values before changing if the settings of [R-GAIN], [B-GAIN] and [G-GAIN] in [WB-ADJ] will be changed.
3. Press the cursor key [Up/Down] on the remote control to change the data value, and press [OK] button on the remote control to store the value for this model.
* COLOR TEMP : Press the [Option] button of the remote control to change the color temperature. (COOL/NORMAL/WARM/ TUNING)
Press
the [Return] button on the remote control.
Version
1. Display
the [Main Menu] with [MENU] on the remote control.
2. Select [Help] with Cursor Key [Up] or [Down] on the remote control and press [OK] to access.
3. Select [Version] with cursor Key [Up] or [Down] on the remote control and press [OK] to access.
2. Select [Help] with Cursor Key [Up] or [Down] on the remote control and press [OK] to access.
3. Select [Version] with cursor Key [Up] or [Down] on the remote control and press [OK] to access.
The
next window will appear.
Hotel mode
In
order to display the Hotel mode setup menu, please enter the following command
(within 2 seconds).
[TV]: Vol [Down] + [REMOTE]: AV (3 times)
[TV]: Vol [Down] + [REMOTE]: AV (3 times)
To exit the Hotel mode setup menu
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
Data Copy by USB Memory
Board
replacement (Copy the data when exchanging A-board):
(a) When exchanging A-board, the data in original A-board can be copied to USB Memory and then copy to new A-board.
(a) When exchanging A-board, the data in original A-board can be copied to USB Memory and then copy to new A-board.
(b)
Hotel (Copy the data when installing a number of units in hotel or any
facility):
When installing a number of units in hotel or any facility, the data in master TV can be copied to USB Memory and then copy to other TVs.
When installing a number of units in hotel or any facility, the data in master TV can be copied to USB Memory and then copy to other TVs.
Preparation
Make pwd file as startup file for (a) or (b) in a empty USB Memory.
1. Insert a empty USB Memory to your PC.
2. Right-click a blank area in a USB Memory window, point to New, and then click text document. A new file is created by default (New Text Document.txt).
3. Right-click the new text document that you just created and select rename, and then change the name and extension of the file to the following file name for (a) or (b) and press ENTER.
File name:
(a) For Board replacement : boardreplace.pwd
(b) For Hotel : hotel.pwd
Note:
Make only one file to prevent the operation error.
No any other file should not be in USB Memory.
Make pwd file as startup file for (a) or (b) in a empty USB Memory.
1. Insert a empty USB Memory to your PC.
2. Right-click a blank area in a USB Memory window, point to New, and then click text document. A new file is created by default (New Text Document.txt).
3. Right-click the new text document that you just created and select rename, and then change the name and extension of the file to the following file name for (a) or (b) and press ENTER.
File name:
(a) For Board replacement : boardreplace.pwd
(b) For Hotel : hotel.pwd
Note:
Make only one file to prevent the operation error.
No any other file should not be in USB Memory.
Data copy from TV set to USB Memory
1. Turn on the TV set.
2. Insert USB Memory with a startup file (pwd file) to USB terminal.
On-screen Display will be appeared according to the startup file automatically.
3. Input a following password for (a) or (b) by using remote control.
(a) For Board replacement : 2770
(b) For Hotel : 4850
Data will be copied from TV set to USB Memory.
It takes around 2 to 6 minutes maximum for copying.
4. After the completion of copying to USB Memory, remove USB Memory from TV set.
5. Turn off the TV set.
Note:
Following new folder will be created in USB Memory for data from TV set.
(a) For Board replacement : user_setup
(b) For Hotel : hotel
1. Turn on the TV set.
2. Insert USB Memory with a startup file (pwd file) to USB terminal.
On-screen Display will be appeared according to the startup file automatically.
3. Input a following password for (a) or (b) by using remote control.
(a) For Board replacement : 2770
(b) For Hotel : 4850
Data will be copied from TV set to USB Memory.
It takes around 2 to 6 minutes maximum for copying.
4. After the completion of copying to USB Memory, remove USB Memory from TV set.
5. Turn off the TV set.
Note:
Following new folder will be created in USB Memory for data from TV set.
(a) For Board replacement : user_setup
(b) For Hotel : hotel
Data copy from USB Memory to TV set
1. Turn on the TV set.
2. Insert USB Memory with Data to USB terminal.
On-screen Display will be appeared according to the Data folder automatically.
3. Input a following password for (a) or (b) by using remote control.
(a) For Board replacement : 2771
(b) For Hotel : 4851
Data will be copied from USB Memory to TV set.
4. After the completion of copying to USB Memory, remove USB Memory from TV set.
(a) For Board replacement : Data will be deleted after copying (Limited one copy).
(b) For Hotel : Data will not be deleted and can be used for other TVs.
5. Turn off the TV set.
Note:
1. Depending on the failure of boards, function of Data copy for board replacement does not work.
2. This function can be effective among the same model numbers.
1. Turn on the TV set.
2. Insert USB Memory with Data to USB terminal.
On-screen Display will be appeared according to the Data folder automatically.
3. Input a following password for (a) or (b) by using remote control.
(a) For Board replacement : 2771
(b) For Hotel : 4851
Data will be copied from USB Memory to TV set.
4. After the completion of copying to USB Memory, remove USB Memory from TV set.
(a) For Board replacement : Data will be deleted after copying (Limited one copy).
(b) For Hotel : Data will not be deleted and can be used for other TVs.
5. Turn off the TV set.
Note:
1. Depending on the failure of boards, function of Data copy for board replacement does not work.
2. This function can be effective among the same model numbers.
Self-check function
1. Checking
the IIC bus lines
2. Power LED Blinking timing
2. Power LED Blinking timing
Self-check indication only:
Produce
TV reception screen, and while pressing [VOLUME ( - )] button on the main unit,
press [BLUE] button on the remote control for more than 3 seconds.
Self-check indication and forced to factory shipment setting
Caution:
New key will be generated and previous TV programmes recorded in USB HDD will not be viewed. (See USB HDD Recording)
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds.
New key will be generated and previous TV programmes recorded in USB HDD will not be viewed. (See USB HDD Recording)
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds.
Disconnect the AC cord from wall outlet or press the [POWER] button on the main
unit for 3 seconds to turn off and then turn on automatically.
Power LED Blinking timing chart
Information
of LED Flashing timing chart.
When an abnormality has occurred the unit, the protection circuit operates and reset to the standby mode. At this time, the
defective block can be identified by the number of blinks of the Power LED on the front panel of the unit.
When an abnormality has occurred the unit, the protection circuit operates and reset to the standby mode. At this time, the
defective block can be identified by the number of blinks of the Power LED on the front panel of the unit.
LCD Panel test mode
Purpose:
To find the possible failure point where in LCD Panel or Printed Circuit Board when the abnormal picture is displayed.
How to Enter:
While pressing [VOLUME ( - )] button of the main unit, press [YELLOW] button of the remote control three times within 2 seconds.
How to Exit:
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
How to confirm:
If the abnormal picture is displayed, go into LCD Panel test mode to display the several test patterns.
And then, judge by the following method.
Still abnormal picture is displayed: The cause must be in LCD Panel.
Normal picture is displayed: The cause must be in A board.
Remarks:
The test pattern is created by the circuit in LCD Panel.
In LCD Panel test mode, this test pattern is displayed unaffected by signal processing for RF or input signal.
If the normal picture is displayed, LCD Panel must be okay and the cause of failure must be in A board.
To find the possible failure point where in LCD Panel or Printed Circuit Board when the abnormal picture is displayed.
How to Enter:
While pressing [VOLUME ( - )] button of the main unit, press [YELLOW] button of the remote control three times within 2 seconds.
How to Exit:
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
How to confirm:
If the abnormal picture is displayed, go into LCD Panel test mode to display the several test patterns.
And then, judge by the following method.
Still abnormal picture is displayed: The cause must be in LCD Panel.
Normal picture is displayed: The cause must be in A board.
Remarks:
The test pattern is created by the circuit in LCD Panel.
In LCD Panel test mode, this test pattern is displayed unaffected by signal processing for RF or input signal.
If the normal picture is displayed, LCD Panel must be okay and the cause of failure must be in A board.
Universal
remote control set-up codes for Panasonic brand TVs.
0016 0032 0033 0049 0054 0075
0099 0101 0104 0107 0110 0119 0143 0151 0152 0161 0166 0207 0249 0304 0305 0306
0396 0420 0461 0611 0631 0633 0692
If your set need a 3 digit code, just delete the leading Zero from each
of the above said code, and then try it.